This alert expired on 12 June 2026 at 01:00 UTC. It is kept here as a record.
It is the 16th strongest of the 24 detections recorded within 20 km of this point since 4 April 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 7:29PM CDT until June 11 at 8:00PM CDT by NWS Chicago IL
Nearby, since 4 April 2026
- July 4, 2026 · score 22 · 11.5 km
- June 6, 2026 · score 22 · 15.2 km
- June 11, 2026 · score 46 · 16.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 59 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 59% |
| Coordinates | 40.7256, -88.4267 |
| Nearest City | Normal (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-12T00:29:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kane, IL; De Kalb, IL; Ford, IL; Iroquois, IL and 4 more areas |
| Headline | Severe Thunderstorm Warning issued June 11 at 7:29PM CDT until June 11 at 8:00PM CDT by NWS Chicago IL |
| Expires | 2026-06-11T20:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f68aa530b829c6e5b87dfc5f75eb7c0160f2274b.001.1","noaa_urn:oid:2.49.0.1.840.0.772114f2fc3fd7aaaaf82ec12c2b79de33652cb6.001.1","noaa_urn:oid:2.49.0.1.840.0.f123d91b0029f7f66633e2c59ba7bdad6b2084e7.002.1","noaa_urn:oid:2.49.0.1.840.0.a2829d7db3a9387738bafff2ffca3ece536bfb43.001.1","noaa_urn:oid:2.49.0.1.840.0.e9f5edb9eefd9294dbd9f603f8ac45e8f7158c01.001.1","noaa_urn:oid:2.49.0.1.840.0.713cebf93a47be5b69bab40610034c1d0ed293c3.001.1","noaa_urn:oid:2.49.0.1.840.0.751bc20b039df1d16ff3f502b4c15d008ad621da.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a weather event with CalamityScore 16/100, near Normal (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.